Nikola Tesla delivers a series of lectures in London, before the Royal Society

It Happened on
February 4, 1892

Tesla tackled the subject of “Experiments with alternate currents of high potential and high frequency“. In these lectures, Tesla laid the foundations for his ideas of radio technology. He was invited by Lord Kelvin. He would present his work at the Columbian Exposition of 1893 in Chicago, the next year.

Following this event, Brachfeld Vilma Parlaghy, Thomas Edison‘s niece, gave birth to their first child Mabel Normand.

This is the conception day event of 2 people, who also made a difference in history

48883 days after the event (plus or minus 48611 days) were born.

External Links

https://web.mit.edu/most/Public/Tesla1/etradict2.htm
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I believe that ignorance is the root of all evil. And that no one knows the truth.
- Molly Ivins